[−][src]Trait rug::ops::MulFromRound
Compound multiplication and assignment to the rhs operand with a specified rounding method.
Examples
use rug::float::Round; use rug::ops::{MulAssignRound, MulFromRound}; use rug::Float; use std::cmp::Ordering; struct F(f64); impl MulFromRound<f64> for F { type Round = Round; type Ordering = Ordering; fn mul_from_round(&mut self, lhs: f64, round: Round) -> Ordering { let mut f = Float::with_val(53, lhs); let dir = f.mul_assign_round(self.0, round); self.0 = f.to_f64(); dir } } let mut f = F(5.0); let dir = f.mul_from_round(3.0, Round::Nearest); // 3.0 × 5.0 = 15.0 assert_eq!(f.0, 15.0); assert_eq!(dir, Ordering::Equal);
Associated Types
Loading content...Required methods
fn mul_from_round(&mut self, rhs: Lhs, round: Self::Round) -> Self::Ordering
Performs the multiplication.
Examples
use rug::Float; use rug::float::Round; use rug::ops::MulFromRound; use std::cmp::Ordering; // only four significant bits let mut f = Float::with_val(4, 13); let dir = f.mul_from_round(-3, Round::Nearest); // −39 rounded down to −40 assert_eq!(f, -40); assert_eq!(dir, Ordering::Less);
Implementors
impl MulFromRound<f32> for Float
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type Round = Round
type Ordering = Ordering
fn mul_from_round(&mut self, lhs: f32, round: Round) -> Ordering
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impl MulFromRound<f32> for Complex
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type Round = (Round, Round)
type Ordering = (Ordering, Ordering)
fn mul_from_round(
&mut self,
lhs: f32,
round: (Round, Round)
) -> (Ordering, Ordering)
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&mut self,
lhs: f32,
round: (Round, Round)
) -> (Ordering, Ordering)
impl MulFromRound<f64> for Float
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type Round = Round
type Ordering = Ordering
fn mul_from_round(&mut self, lhs: f64, round: Round) -> Ordering
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impl MulFromRound<f64> for Complex
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type Round = (Round, Round)
type Ordering = (Ordering, Ordering)
fn mul_from_round(
&mut self,
lhs: f64,
round: (Round, Round)
) -> (Ordering, Ordering)
[src]
&mut self,
lhs: f64,
round: (Round, Round)
) -> (Ordering, Ordering)
impl MulFromRound<i32> for Float
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type Round = Round
type Ordering = Ordering
fn mul_from_round(&mut self, lhs: i32, round: Round) -> Ordering
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impl MulFromRound<i32> for Complex
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type Round = (Round, Round)
type Ordering = (Ordering, Ordering)
fn mul_from_round(
&mut self,
lhs: i32,
round: (Round, Round)
) -> (Ordering, Ordering)
[src]
&mut self,
lhs: i32,
round: (Round, Round)
) -> (Ordering, Ordering)
impl MulFromRound<u32> for Float
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type Round = Round
type Ordering = Ordering
fn mul_from_round(&mut self, lhs: u32, round: Round) -> Ordering
[src]
impl MulFromRound<u32> for Complex
[src]
type Round = (Round, Round)
type Ordering = (Ordering, Ordering)
fn mul_from_round(
&mut self,
lhs: u32,
round: (Round, Round)
) -> (Ordering, Ordering)
[src]
&mut self,
lhs: u32,
round: (Round, Round)
) -> (Ordering, Ordering)
impl MulFromRound<Complex> for Complex
[src]
type Round = (Round, Round)
type Ordering = (Ordering, Ordering)
fn mul_from_round(
&mut self,
lhs: Complex,
round: (Round, Round)
) -> (Ordering, Ordering)
[src]
&mut self,
lhs: Complex,
round: (Round, Round)
) -> (Ordering, Ordering)
impl MulFromRound<Float> for Complex
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type Round = (Round, Round)
type Ordering = (Ordering, Ordering)
fn mul_from_round(
&mut self,
lhs: Float,
round: (Round, Round)
) -> (Ordering, Ordering)
[src]
&mut self,
lhs: Float,
round: (Round, Round)
) -> (Ordering, Ordering)
impl MulFromRound<Float> for Float
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type Round = Round
type Ordering = Ordering
fn mul_from_round(&mut self, lhs: Float, round: Round) -> Ordering
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impl MulFromRound<Integer> for Complex
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type Round = (Round, Round)
type Ordering = (Ordering, Ordering)
fn mul_from_round(
&mut self,
lhs: Integer,
round: (Round, Round)
) -> (Ordering, Ordering)
[src]
&mut self,
lhs: Integer,
round: (Round, Round)
) -> (Ordering, Ordering)
impl MulFromRound<Integer> for Float
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type Round = Round
type Ordering = Ordering
fn mul_from_round(&mut self, lhs: Integer, round: Round) -> Ordering
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impl MulFromRound<Rational> for Complex
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type Round = (Round, Round)
type Ordering = (Ordering, Ordering)
fn mul_from_round(
&mut self,
lhs: Rational,
round: (Round, Round)
) -> (Ordering, Ordering)
[src]
&mut self,
lhs: Rational,
round: (Round, Round)
) -> (Ordering, Ordering)
impl MulFromRound<Rational> for Float
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type Round = Round
type Ordering = Ordering
fn mul_from_round(&mut self, lhs: Rational, round: Round) -> Ordering
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impl<'_> MulFromRound<&'_ f32> for Float
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type Round = Round
type Ordering = Ordering
fn mul_from_round(&mut self, lhs: &f32, round: Round) -> Ordering
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impl<'_> MulFromRound<&'_ f32> for Complex
[src]
type Round = (Round, Round)
type Ordering = (Ordering, Ordering)
fn mul_from_round(
&mut self,
lhs: &f32,
round: (Round, Round)
) -> (Ordering, Ordering)
[src]
&mut self,
lhs: &f32,
round: (Round, Round)
) -> (Ordering, Ordering)
impl<'_> MulFromRound<&'_ f64> for Float
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type Round = Round
type Ordering = Ordering
fn mul_from_round(&mut self, lhs: &f64, round: Round) -> Ordering
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impl<'_> MulFromRound<&'_ f64> for Complex
[src]
type Round = (Round, Round)
type Ordering = (Ordering, Ordering)
fn mul_from_round(
&mut self,
lhs: &f64,
round: (Round, Round)
) -> (Ordering, Ordering)
[src]
&mut self,
lhs: &f64,
round: (Round, Round)
) -> (Ordering, Ordering)
impl<'_> MulFromRound<&'_ i32> for Float
[src]
type Round = Round
type Ordering = Ordering
fn mul_from_round(&mut self, lhs: &i32, round: Round) -> Ordering
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impl<'_> MulFromRound<&'_ i32> for Complex
[src]
type Round = (Round, Round)
type Ordering = (Ordering, Ordering)
fn mul_from_round(
&mut self,
lhs: &i32,
round: (Round, Round)
) -> (Ordering, Ordering)
[src]
&mut self,
lhs: &i32,
round: (Round, Round)
) -> (Ordering, Ordering)
impl<'_> MulFromRound<&'_ u32> for Float
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type Round = Round
type Ordering = Ordering
fn mul_from_round(&mut self, lhs: &u32, round: Round) -> Ordering
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impl<'_> MulFromRound<&'_ u32> for Complex
[src]
type Round = (Round, Round)
type Ordering = (Ordering, Ordering)
fn mul_from_round(
&mut self,
lhs: &u32,
round: (Round, Round)
) -> (Ordering, Ordering)
[src]
&mut self,
lhs: &u32,
round: (Round, Round)
) -> (Ordering, Ordering)
impl<'_> MulFromRound<&'_ Complex> for Complex
[src]
type Round = (Round, Round)
type Ordering = (Ordering, Ordering)
fn mul_from_round(
&mut self,
lhs: &Complex,
round: (Round, Round)
) -> (Ordering, Ordering)
[src]
&mut self,
lhs: &Complex,
round: (Round, Round)
) -> (Ordering, Ordering)
impl<'_> MulFromRound<&'_ Float> for Complex
[src]
type Round = (Round, Round)
type Ordering = (Ordering, Ordering)
fn mul_from_round(
&mut self,
lhs: &Float,
round: (Round, Round)
) -> (Ordering, Ordering)
[src]
&mut self,
lhs: &Float,
round: (Round, Round)
) -> (Ordering, Ordering)
impl<'_> MulFromRound<&'_ Float> for Float
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type Round = Round
type Ordering = Ordering
fn mul_from_round(&mut self, lhs: &Float, round: Round) -> Ordering
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impl<'_> MulFromRound<&'_ Integer> for Complex
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type Round = (Round, Round)
type Ordering = (Ordering, Ordering)
fn mul_from_round(
&mut self,
lhs: &Integer,
round: (Round, Round)
) -> (Ordering, Ordering)
[src]
&mut self,
lhs: &Integer,
round: (Round, Round)
) -> (Ordering, Ordering)
impl<'_> MulFromRound<&'_ Integer> for Float
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type Round = Round
type Ordering = Ordering
fn mul_from_round(&mut self, lhs: &Integer, round: Round) -> Ordering
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impl<'_> MulFromRound<&'_ Rational> for Complex
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type Round = (Round, Round)
type Ordering = (Ordering, Ordering)
fn mul_from_round(
&mut self,
lhs: &Rational,
round: (Round, Round)
) -> (Ordering, Ordering)
[src]
&mut self,
lhs: &Rational,
round: (Round, Round)
) -> (Ordering, Ordering)